---
name: "kdk_usb_get_list"
section: "3"
platform: "linux"
package: "libkysdk-system"
version: "3.0.1.4-1"
release: "Arch Linux 2026-11-07"
platforms: ["linux"]
url: "https://carta.tech/man/kdk_usb_get_list"
---

# kdk\_usb\_get\_list(3)

获取外接usb设备信息

## NAME

kdk\_usb\_get\_list - 获取外接usb设备信息

## SYNOPSIS

```
#include <libkyusb.h>

extern pDriverInfoList kdk_usb_get_list();

Link with -lkyusb.
```

## Detailed Description

The main function of the interface is to obtain the external usb device information.

## RETURN VALUE

On success, returns a pointer to a  *pDriverInfoList* structure containing usb information.

The  *pDriverInfoList* structure is defined in *\<libkyusb.h\>* as follows:

            typedef struct driver\_list\
             {\
                 struct driver\_info \*data;\
                 struct driver\_list \*next;\
             } DriverInfoList, \*pDriverInfoList;

            typedef struct driver\_info\
             {\
                 char name\[32\]; //名称\
                 char type\[2 + 1\]; //类型\
                 char pid\[4 + 1\];\
                 char vid\[4 + 1\];\
                 char serialNo\[32\]; //序列号\
                 char devNode\[32\]; //路径\
             } DriverInfo, \*pDriverInfo;

On error, return **NULL.**

## EXAMPLES

```
#include "stdio.h"
#include "libkyusb.h"
int main()
{
    pDriverInfoList list = kdk_usb_get_list();
    if(list)
    {
        pDriverInfoList tmp = list;
        while (tmp)
        {
            printf("Name: %s ",tmp->data->name);
            printf("Class: %s ",tmp->data->type);
            printf("PID: %s ",tmp->data->pid);
            printf("VID: %s ",tmp->data->vid);
            printf("Serial: %s ",tmp->data->serialNo);
            printf("DevNode: %s0,tmp->data->devNode);
            tmp = tmp->next;
        }
    }
    kdk_usb_free(list);
    return 0;
}
```

## CONFORMING TO

These functions are as per the withdrawn POSIX.1e draft specification. The following functions are Linux extensions: **kdk\_usb\_free**().

## SEE ALSO

[**kdk\_usb\_free**(3)](/man/kdk_usb_free/3.md).